Compositions for compounding, extrusion and melt processing of foamable and cellular halogen-free polymers
First Claim
1. A support-separator for use in a communications cable, the support separator comprising:
- a foamed polymeric preformed elongate body configured to extend from a proximal end to a distal end, the foamed polymeric elongate body comprising a plurality of channels each configured to receive a transmission medium configured to carry electrical power or telecommunication data, said foamed polymeric preformed elongate body further comprising a plurality of foamed cells, wherein each cell comprises a maximum diameter in range of about 0.0005 inches to about 0.003 inches;
wherein said foamed polymeric performed elongate body further comprises at least one base polymer selected from a group consisting of polyphenylenesulfide (PPS), polyetherimide (PEI), polysulfone (PSU), polypheylsulfone (PPSU), polyethersulfone (PES/PESU), polyetheretherketone (PEEK), polyaryletherketone (PAEK), polyetherketoneketone (PEKK), polyetherketone (PEK), or polyolefins such as polyethylene (PE), polyproplylene (PP), cyclic olefin copolymer (COC), polycarbonate (PC), polyphenylene ether (PPE), liquid crystal polymer (LCP), or combinations thereof.
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Accused Products
Abstract
Described herein are foamable compositions and methods of making foamed compositions. The foamable composition comprises at least one polymer and a foaming agent. The foaming agent comprises a talc or a talc derivative. The polymers described herein comprise a substantially non-halogenated polymer. One or more additives are added to render the compositions flame retardant and/or smoke suppressant. Also described are Power over Ethernet (PoE) cables, having at least one electrical conduit comprising an electrically conductive core, an insulation that at least partially surrounds said electrically conductive core and a polymeric separator extending from a proximal end to a distal end and having at least one channel adapted for receiving the at least one electrical conduit. The PoE cables are capable of carrying about 1 watt to about 200 watts of power.
130 Citations
23 Claims
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1. A support-separator for use in a communications cable, the support separator comprising:
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a foamed polymeric preformed elongate body configured to extend from a proximal end to a distal end, the foamed polymeric elongate body comprising a plurality of channels each configured to receive a transmission medium configured to carry electrical power or telecommunication data, said foamed polymeric preformed elongate body further comprising a plurality of foamed cells, wherein each cell comprises a maximum diameter in range of about 0.0005 inches to about 0.003 inches; wherein said foamed polymeric performed elongate body further comprises at least one base polymer selected from a group consisting of polyphenylenesulfide (PPS), polyetherimide (PEI), polysulfone (PSU), polypheylsulfone (PPSU), polyethersulfone (PES/PESU), polyetheretherketone (PEEK), polyaryletherketone (PAEK), polyetherketoneketone (PEKK), polyetherketone (PEK), or polyolefins such as polyethylene (PE), polyproplylene (PP), cyclic olefin copolymer (COC), polycarbonate (PC), polyphenylene ether (PPE), liquid crystal polymer (LCP), or combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification